95 blazer wont crank
 

Our car was just fixed, we replaced the CPI spider and it is driving great, well it WAS driving great until my fiance went to the store and turned the car off, it wouldn't turn back on.


the car had no problems with the starter before hand, and now its just not turning over, the car is trying to start, can feel the key spring when turning, and the key lights dim a bit, and the starter sparks between the solenoid and the power for the starter. and the car wont start even with a jump.

HALP!